Footwear sole



FIG. 1 is a perspective view of a footwear sole in accordance with an embodiment of the ornamental design;

FIG. 2 is a front elevational view of the footwear sole in accordance with the embodiment;

FIG. 3 is a back elevational view of the footwear sole in accordance with the embodiment;

FIG. 4 is a left side elevational view of the footwear sole in accordance with the embodiment;

FIG. 5 is a right side elevational view of the footwear sole in accordance with the embodiment;

FIG. 6 is a top plan view of the footwear sole in accordance with the embodiment; and,

FIG. 7 is a bottom plan view of the footwear sole in accordance with the embodiment.

Broken lines are used to show unclaimed environment only and form no part of the claimed design. 

CLAIM The ornamental design for a footwear sole, as shown and described. 